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Terms for subject Explosives and Explosive Ordnance Disposal containing | all forms
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半隐semiconcealed
半隐煤田含煤岩系出露尚好,能大致了解其分布范围,或根据其基底的露头,可以圈出部分边界的煤田semiconcealed coalfield
微地形起micro relief
波动起wavy
波浪起undulating
地带undulating ground
地带undulating gradient
地带undulating grade
煤田含煤岩系出露极差且大部或全部被掩盖,地面地质填图难以确定其边界的煤田concealed coalfield